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               2012-02-29 1. Cenon-Documents (.cenon)
               
              The files written with Release 3.9 can be read by older Versions of Cenon (down to Version 3.6), but the following new Features will be ignored:
  
              
                - Project Settings (new in 3.9.0)
 
                
              2. Device Files (Library/Cenon/Devices/xyz/*.dev)
               
              The following changes were made to the device files: 
              
                - Switch-Entries (#SW1, #SW2, #SW3, #SW4)
 
                  (modified in 3.9.0)
                  The Switch-Entries have been extended by two more parameters, allowing to set the title of the switch in the Control-Panel, and a flag to tell if the switch is safe. 
                  -> If the device entry is not updated, the old behaviour remains. The switch entries expect the following parameters: 
                  
                    - Command for switching ON
 
                    - Command for switching OFF
 
                    - Title of the switch, or "" to leave the default values.
 
                    - Flag: 1 = switch can be switched during output, 0 = switch is inactive during output.
 
                   
                  Example: 
                  Switch 1   #SW1 "Command On" "Command Off" "Spindle" 0 
                  Switch 2   #SW2 "Command On" "Command Off" "Music"   1 
                  In the Example it is not possible to turn off the Spindle while the machine is active, but it is possible to turn off the Music. 
                 
                - Camera Support for Gauging (#COF)
 
                  (added in 3.9.0)
                  If the Camera-Gauging is needed, then you have to set the new Device-Entry "#COF" with the offset of the Camera. The offset is the distance of the camera relative to the tool. The tool being the origin. camera offset XY from tool (mm)   #COF 60.0 5.0
                 
               
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